Home > categories > Machinery & Equipment > AC Motor > Hertz difference still matter with universal motor?
Question:

Hertz difference still matter with universal motor?

This american device is labeled as '60hz' but it runs on a universal brush motor, which means that it will still run fine in a '50hz' country without any frequency cycle disturbance, providing i convert the volts, right?I was told that bacause it's labeled on one stores website as '120V AC 60 Hz only' that it probably isnt a true universal motor.But I noticed You can get replacement Carbon Brush and Brush Spring Assemblies - This would futher indicate thats it's a 'true ' universal motor right?

Answer:

A 60 Hz motor will operate on a 50 Hz supply, but not at rated speed and capacity. A 50 Hz motor will operate on a 60 Hz supply, but the rpm will be higher than specified. What are you operating and what is it worth to you to stay within specifications?
A universal motor will run fine on 60 Hz or 50 Hz. Speed on a universal motor is determined by windings and load, not Hz. Universal ac motors operate with nearly equivalent performance on direct current or alternating current up to 60 Hz. Universal ac motors can operate on dc with essentially equivalent ac motor performance, but with poorer commutation and brush life than for an equivalent dc motor. See the link below for more information.

Share to: